Different electrode pads target different areas and have different effects. For example, cavitation is used to break down fat, radiofrequency (RF) tightens skin, EMS stimulates muscles, and lipo-dissolving lasers (Lipo-laser) help with fat metabolism. EMS lasers combine muscle stimulation and laser lipolysis for a more comprehensive approach; while pure lipo-dissolving lasers primarily target the fat layer. Because their principles differ, their effects will also differ.